package tk.heimashuma.store.utils;

import java.util.Random;

public class BoxUtils {
    public static String getRandomInt(int len){
        StringBuffer code = new StringBuffer();
        Random random = new Random();
        for(int i = 0 ; i < len ; i++){
            code.append(random.nextInt(10));
        }
        return  code.toString();
    }
}
